JUST GOT BACK AND ABOUT 60 MILES AWAY I STOPPED IN A SAMLL TOWN AND LOOKED AT A SOLAR SYSTEM A GUY WAS PUTTING UP. HE HAD TWO BANKS AND HAD ANOTHER SMALLER SYSTEM HOLDING TWO 6V BATTERIES AND A SMALL INVERTER. HE TOLD ME HIS LIGHTS IN THE STORAGE SHED ARE POWERD BY THEM SO IF HE HAS A PROBLEM WITH HIS BIG BANKS HE CAN WORK ON THEM AND HAVE POWER FOR LIGHTS AND THINGS IN THE SHED. SEEMS LIKE A GOOD IDEA. THOUGHT I WOULD PASS IT ON